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Division Spotlight
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Jun 2025
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Nuclear Science and Engineering
August 2025
Nuclear Technology
July 2025
Fusion Science and Technology
Latest News
Nuclear fuel cycle reimagined: Powering the next frontiers from nuclear waste
In the fall of 2023, a small Zeno Power team accomplished a major feat: they demonstrated the first strontium-90 heat source in decades—and the first-ever by a commercial company.
Zeno Power worked with Pacific Northwest National Laboratory to fabricate and validate this Z1 heat source design at the lab’s Radiochemical Processing Laboratory. The Z1 demonstration heralded renewed interest in developing radioisotope power system (RPS) technology. In early 2025, the heat source was disassembled, and the Sr-90 was returned to the U.S. Department of Energy for continued use.
Technical Session|Sponsored by MSTD
Wednesday, June 16, 2021|12:00–1:45PM EDT
Session Chair:
J. Rory Kennedy
Session Organizer:
Alternate Chair:
Kenneth J. Geelhood
Staff Producer:
Rick Michal (ANS)
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Microstructural Characterization of Neutron Irradiated Mineral Concrete Aggregates
J. David Arregui-Mena (ORNL), Juliane Weber (ORNL), Matheus A. Tunes (Montauniversität Leoben), Christa E. Torrence (Texas A&M), Thomas M. Rosseel (ORNL), Ippei Maruyama (Nagoya Univ.), Philip D. Edmondson (ORNL)
Paper
Thermal and Neutronic Analyses of High Particle Power TRISO Irradiations using MiniFuel
Ryan C. Gallagher (ORNL), Tyler Gerczak (ORNL), Grant Helmreich (ORNL), Christian Petrie (ORNL), Zane Wallen (ORNL), Ryan Latta (Kairos Power)
In Situ Nano-Indentation Techniques for Post-Irradiation Examinations
Takaaki Koyanagi (ORNL), Keyou Mao (ORNL), Yutai Katoh (ORNL)
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